Velocity of sound in vacuum is ____________________?A. 332 ms-1B. 320 ms-1C. ZeroD. 224 ms-1 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments